Introduction. In the context of the strategic aggravation of the geopolitical situation, as well as the fact that the Eurasian (post-Soviet) space is itself subject to many external and internal threats, the question of the necessity and sufficiency, as well as the consistency of collective security measures in this region, is relevant. The aim of the work is to clarify the relative level of readiness of the countries of the key security organization in the post-Soviet space – the CSTO, to these threats. Materials and methods. The method of comparative analysis, the general scientific methods of analysis and synthesis, and the approaches of system analysis are used in the work. Results of the study. In the post-Soviet space, Russia, Armenia, Ukraine, Azerbaijan and Uzbekistan have the largest defense spending relative to GDP. At the same time, most of the CSTO countries have defense spending not very large 1%. A similar situation is faced with NATO, where the United States bears the main burden, while the young “satellite” of the bloc – the Baltic countries have to bear a more serious burden of ensuring security for the economy. Discussion. The level of defense spending in Russia as a whole is fully consistent with the level of threats to its security, the need to help ensure the security of allied countries (primarily the CSTO). At the same time, the high level of military-technical and military-educational cooperation between Russia and foreign countries, as well as information attacks of the West on its indicators, are evidence of Russia’s global authority in the field of security. Conclusion. There are a number of areas of the need to ensure collective security (humanitarian, information, biological), the development and elaboration of consensus on which at the strategic level needs to be intensified.
Key words: defense spending, national security spending, military-industrial complex, collective security, CSTO, NATO, CIS, arms exports.